Certified Rhythm Analysis Technician (CRAT) Practice Exam

The cardiovascular technologist is primarily trained to assist with invasive cardiovascular diagnostic tests. This role involves not only performing non-invasive tests like echocardiograms but also supporting procedures that may require catheterization or other interventions. They have specialized skills and knowledge about cardiovascular anatomy, physiology, and pathology, enabling them to support healthcare providers during tests such as angiograms, stress tests, and other invasive procedures.

The ECG technician and monitor technician, while vital to cardiovascular diagnostics, typically handle tasks related to non-invasive testing and monitoring of heart rhythms rather than assistance during invasive procedures. The medical assistant generally has a broader role that may include administrative duties and supporting the clinical team, but they do not specialize in cardiovascular technology or invasive testing. Thus, the cardiovascular technologist is best suited for assisting with invasive tests, making it the correct choice for the question.